- Baikal Teal
- Bald Eagle
- Bananaquit
- Bar-tailed Godwit
- Bare-cheeked Babbler
- Bare-throated Bellbird
- Bare-throated Tiger Heron
- Barn Swallow
- Bateleur
- Bearded Reedling
- Belcher's Gull
- Benguela Long-billed Lark
- Berthelot's Pipit
- Black-chested Snake Eagle
- Black-collared Barbet
- Black-crowned Night Heron
- Black-faced Grassquit
- Black-fronted Piping Guan
- Black-headed Bunting
- Black-headed Gull
- Black-headed Oriole
- Black-legged Kittiwake
- Black-naped Oriole
- Black-necked Grebe
- Black-necked Stork
- Black-tailed Godwit
- Black-throated Loon
- Black-whiskered Vireo
- Black-winged Kite
- Black-winged Stilt
- Black Crake
- Black Kite
- Black Redstart
- Black Stork
- Black Swan
- Black Tern
- Black Vulture
- Blacksmith Lapwing
- Blue-grey Tanager
- Blue-winged Teal
- Blue Jay
- Blue Rock Thrush
- Blue Waxbill
- Bluethroat
- Boat-billed Flycatcher
- Boat-billed Heron
- Bokmakierie
- Booted Eagle
- Brambling
- Broad-billed Roller
- Bronzed Cowbird
- Bronzed Drongo
- Brown Booby
- Brown Pelican
- Brown Trembler
- Brubru
- Burchell's Sandgrouse
- Burchell's Starling